Coupling for wires, etc.



1,641,627 Sept 1927' c. H. ERICSQN COUPLING FOR WIRES, ETC

Filed July 1926 In'venlfir G212 H; Erica-on @W CZZQ s.

Patented sea, 6, 192?.

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PATENT OFFICE. T

CARL E. EBICSON, OF BOSTON, MASSACHUSETTS.

"con-rams roit WIItES, are.

Application filed July 27, 1928. Serial No. 125,175.

This invention relates to means for detachably connecting elongated sections or parts Of the accompanying drawings forming a 1 has abore of uniform diameter.

part of this specification,

Figure 1 is a longitudinal section of my improved coupling showing in elevation portions of two conducting wires connected thereby.

Figures 2 and.3 are perspective views of the wedge members shown b Figure 1. j Fi re 4 is a perspective v1ew of the sleeve mem er shown by Figure 1. 3

Fi re 5 shows in section one of the wedge mem ers. 0 Figure 6 is a side view of a portion of one of the conducting wires. 9

Figure 7 is a view showing the sleeve me1nher in longitudinal section and the wedge members in elevation, abutted closely against each other to release the binding connection between their outer surfaces and the bore of the sleeve member. I

Figure 8 is aview similar to Figure 1,

SllOWlDg a modification. K

The same reference characters indicate the same parts inall of the figures. In the drawings, "12 designates a sleeve member which is open from end to end and Twowed e members are insertible in the bore of t e sleeve member and are provided with means for engagement'with conducti wires 15, or other parts to be connected y the couplmg. 1 a 11 e wedge members are provided with complemental inner faces 13, which are inclined relative to the axis of the sleeve, and

,' outer faces 14, formed to frictionallyen'- gage the sleeve bore.

' Thearrangement ISiSllCh that when the Said ends ma this strain being caused, for example, by the tension exerted on the wires 15, the inclined facesv 13 slip on each other, so that the outer faces 14 are pressedlaterally outward into bindingv engagement with the bore of the sleeve ,member 12, and when the longitudinal strain ceases, the wedge members may be forcedinwardly toward each other, until thebinding engagement also ceases, so that the sleeve is removable from the wed e members.

This will be clearly understood. y comparing Figure 1 with Figure 7. Figure 1 shows the wedge members pulled outward and bindin on the sleeve member, spaces 16 being ormed between adjacent end faces of the wedge members. Figure 7 shows the wedge members forced inward, -sothat slight crevices 17 (shown somewhat exag gerated by Figuure 7) are formed between 'the sleeve bore and'the outer surfaces of the wedge members. The sleeve as shownby Figure 7, is free to be moved endwise from th wedge members. a

The means 'PIOVldGd for engaging" the parts 15 with the wedge members maybe heads 18,'l'oosely fitting the sleeve bore and provided withlongitudinal sockets 19, adapted to receive; end portions of the parts 15. Said end portions may be secured to the heads in any suitable manner. As shown by Fi tires 1', 3 and 5, the heads may be provi ed withrec'esses 20, formed to receive the outwardly bent ends 15 of the parts 15. be soldered in the recesses. The inner an s of the heads 18 form sides .of the spaces 16, when the wedge members are moved outward, as shown by Figure 1.

To prevent the possibility of an accidental release or cessation of the binding on agement, between the wedge members an the sleeve, I may provide the sleeve with adjust: able stop means engageable with the wedge members when they are adjusted as shown 7 by Figure 1, to prevent them from being moved inwardly to the positions shown by Figure 7. Said means may be embodied in a pointed screw '22, engaged with a tapped orifice in the sleeve 12, and adapted to be turned'into one of thespaces 16, as shown by Figure 1, and form a stop preventing endwise movement of either wedge member. When the members of the coupling are to be separated, the screw is retracted as shown by Figure 7. i

011s of the wedge members they be attached by a screw 23 to a fixed gpjart izt, the

screw engaging an internal thread in the socket 19 in the head of said member.

I claim:- 1. A coupling comprising a sleeve mem.-

ber and two wedge members insertible in the bore of the sleeve member, and provided with means for engagement with parts to be connected by the coupling, the wedge members having complemental inner faces inclined relative to the axis of the sleeve, and outer faces formed to frictionally engage the sleeve bore, the arrangement being such that when the wedge members are inserted in the sleeve and subjected to longitudinal strain,- their outer faces are pressed laterally outward into binding engagement with the sleeve bore, and the wedge members are rigidly connected by the sleeve, and

y when the longitudinal strain ceases, the

vided with longitudinal sockets adapted to receive parts to be connected by the coupling, the wedge members including also wedge-shaped inner portions having complemental inner faces inclined relative to the axis of the sleeve, and outer faces formed to frictonally engage the sleeve bore, the arrangement being such that when the wedge members are inserted in the sleeve and subjected to longitudinal strain, their outer faces are pressed laterally outward into binding engagement with the sleeve bore, and the wedge members are rigidly connected by the sleeve, and when the longitudinal strain ceases, the wedge members may be forced inward toward each other until the binding engagement also ceases, and the sleeve is removable from the wedge memers.

3. A coupling as specified by claim 1, the sleeve being provided with adjustable stop means engageable with the wedge members to confine the same in binding engagement with the sleeve bore.

In testimony whereof I have aflixed my signature.

CARL H. ERICSON. 

